Home / 53,120.64-79,689.62-15,684.50

Finding the Fourth Proportional to 53,120.64, 79,689.62 and 15,684.50

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Solution

The fourth proportional to 53,120.64, 79,689.62 and 15,684.50 is: 23,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.64 : 79,689.62 = 15,684.50 : x
  2. Step 2: Convert to fraction form
    53,120.64/79,689.62 = 15,684.50/x
  3. Step 3: Cross multiply
    53,120.64x = 79,689.62 × 15,684.50
  4. Step 4: Simplify right side
    53,120.64x = 1,249,891,517.44
  5. Step 5: Solve for x
    x = 1,249,891,517.44/53,120.64
  6. Step 6: Final answer
    x = 23,529.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.